Historical industrial sites often have deposits of fill material containing a wide range of organic contaminants. Perched ground water present in the base of the fill is usually impacted by the contaminants and may provide a mechanism for off-property migration of the contaminants. The organic contaminants are wide spread throughout the fill without a well […]
The success of bioaugmentation depends on effective distribution of the beneficial microbes. If the target population is achieved, the remediation rate ranges from 50% to over 99% removal. The rate appears to be independent of the contaminant starting concentrations. This indepedence is the advantage of bioaugmentation. Through bioaugmentation the density of beneficial organisms is sufficient for […]
Many times oxygen is injected to improve natural attenuation of petroleum and other contaminants. The results are often less than expected because the beneficial microbes that the oxygen addition is supposed to stimulate are absent or insufficient in numbers. Bioaugmentation has been used to improve the results once the oxygen levels have increased but failed to […]
Dinitrotoluene (DNT) may occur in soil and ground water as the result of spills and historical use of the chemical as a solvent and industrial intermediary or as a residual of explosives at military facilities. CL Solutions and SpecPro, Inc. conducted a treatability study to determine the effectiveness of CL-Out microbes in the removal of […]
By switching from active extraction to in situ CL-Out® bioremediation, In Control Technologies, Inc. of Houston, Texas saved their client $100,000s in on-going operation and maintenance costs. The Site was a shopping center where soil and ground water were contaminated by dry cleaning chemicals. A dual phase extraction system was installed and operated for 9 […]
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